{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["material", "biomedical", "process parameter", "enabling technology", "process characterization", "application"], "input": "Cu-Al alloy was in-situ fabricated by twin wire arc additive manufacturing ."}
{"material": ["alloy"], "biomedical": [], "process parameter": [], "enabling technology": [], "process characterization": [], "application": []}